Ultra Aqueous C18 HPLC Prep Columns

• Easy scale-up from Restek analytical columns
• Popular bonded phases

Restek makes it easy to scale up your separations. We offer a wide range of semipreparative and preparative-scale columns packed with many of our popular Ultra, Allure, Pinnacle DB, and Viva bonded phases on a 5 μm spherical silica.

The Restek Aqueous C18 is a rugged, reversed-phase column with a well-balanced retention profile. It can effectively retain more types of solutes than a conventional C18 and is ideal for multicomponent LC-MS analyses. The general-purpose Aqueous C18 boasts high reproducibility and compatibility with many mobile phase conditions—even 100% aqueous. And when used with a gradient, it eliminates the all-too-common issue of multiple compounds eluting near the column void time.

Particle Size: 5 µm, spherical
Pore Size: 100 Å
Carbon Load: 15%
pH Range: 2.5 to 8
Temperature Limit: 80°C
USP Phase Code: L1
Phase Category: modified C18
Ligand Type: proprietary polar modified and functionally bonded C18

Please note: We strongly recommend ordering a semi-prep or prep column only after evaluating the desired separation on an equivalent analytical-scale column. Because we cannot reuse a column or the silica it contains once it has left our facility, we cannot accept returns of large-scale columns.